The Impact of VOC on Indoor Air Quality: How to reduce VOC Emission from Water Based Emulsion Paints?
- September 19, 2019
- Posted by: MahaChem
- Category: Coating, ST
Are you still manufacturing paints with high VOC? Do you know the impact it has on the indoor air quality?
Indoor air quality (IAQ) is the air quality within a building. It can affect the health, comfort and well-being of building occupants.
Water based emulsion paints painted on wall will normally emits VOC (Volatile organic compound) to the indoor air for a long period of time. As many are aware, VOC may bring some of the following health effects:
- Eye, nose and throat irritation
- Headaches, loss of coordination and nausea
- Damages to liver, kidney and central nervous system
- Potential to cause cancer
Cause of VOC and Dilemma to reduce VOC
One of the source of VOC in the paint raw materials is the coalescing solvent. It is required for film forming of paints made with latex of high film forming temperature. One way to reduce the VOC is not to use coalescing solvent by selecting a soft latex with low film forming temperature.
However this type of soft latex contributed to the tackiness of the paint film, especially in gloss paint where high amount of latex is used.
Our Solution: Tego Glide 482
TEGO® Glide 482 is an emulsion of a high molecular weight polydimethylsiloxane. It offers excellent slip, scratch resistance and anti-blocking properties in waterborne paints. It reduces the tackiness of paints make with soft latex which allow the paint to have zero coalescing solvent.
Efficacy of Tego Glide 482
Below are the tests to demonstrate the effectiveness of TEGO® Glide 482 in scratch resistance and anti-blocking properties.
- Scratch Resistance
The below image showed that with 0.5% of TEGO® Glide 482 added into a 24% PVC paint, it improves the scratch resistance of the paint film.
The paint samples were drawn down on a PVC sheet with a 125 micron applicator and dried for two days. The paint film was cut into 5 cm x 5 cm, place face to face on a glass panel and a 1.5 kg weight was placed on top for 24 hours. After 24 hours, the weight was removed and the paint film was separated and examined any blocking mark on the paint surface.
The test result showed that paint film with 0.5% of TEGO® Glide 482 is easier to be separated and has less blocking mark on the surface. The good anti-block property allowed indoor paint to be formulated with soft latex and without coalescing solvent.
*Note: The blocking mark cannot be seen clearly when taking picture.
What is your choice?
We are the distributor of Tego products in Singapore, Cambodia and Myanmar.
Are you interested in our solution? Please contact us for further details.